k-on!! songs on ocarina!!!!

okay so some people may not have watched/seen/know about k-on!!
it's a slice of life anime revolving around 5 high school girls who form a band in the light music club(k-on)
ritsu- president and drummer of the club
mio- bass player, vocals, shy, hates scary things
tsmugi(mugi)- keyboards, brings tea, very polite
yui- guitarist, doesn't do well in warm places, vocals, allergic to air conditioning
azusa(azu-nyan)- guitarist, super cute, always wants the group to try there hardest, youngest member
they form a band called Ho-Kago Tea Time (HTT), they make awesome music, and soon the movie will be out to dvd(in like a month). why am i talking about his because this guy did a cover of 2 of my favorite k-on songs on ocarina!
http://www.youtube.com/watch?v=L1DcqU15NtI&feature=related - fude pen boru pen(brush pen ball pen)
and
http://www.youtube.com/watch?v=nmK72GITHlY&feature=relmfu - fuwa fuwa time (light and fluffy time)
check them out